Description
CALCULATION SHEET PROJECT :
DATE :
TOTAL E&P INDONESIE EXTENSION PLATFORM INSTALLATION
SUBJECT :
PAD EYE DECK PLTF.
REV'N. :
A
5/30/2009 14:11 PREP'D. BY
CHECKED BY :
SGT
BT
DESIGN OF PADEYE th
( As per AISC-ASD 9 Edition, AWS D1.1 Table 2.3, GS-STR-103 )
INPUT DATA N/A
Element / Member
N/A
Load Case / Load Comb Allowable Stress Factor
CSF
1.00
Consequence Factor
γC
1.35
Dynamic Amplification Factor
DAF
1.30
Out of Plane Load Factor
γF
0.05
Sling Angle
α
Sling Force from Analysis
These factor =1.0 if already considered in analysis
65 deg 245 kN
P
PADEYE MAIN
PADEYE PLATE
CHEEK
Yield Strength
Fym
Thickness
tm
25.00 mm
Radius
rm
120.00 mm
Total Length
Lm
325.00 mm
Height of Eye
Hm
150.00 mm
355.00 MPa
Edge distance from outer main plate, rm - rc
Fyc
355.00 MPa
tc
16.00 mm
Cc
20.00 mm
STIFFENERS Yield Strength
Fys
Thickness
ts
12.00 mm
Stiffener Spacing to Pin Hole
Ls
112.50 mm
Width of Stiffener
Ws
143.00 mm
Height
Hs
115.00 mm
355.00 MPa
SECTION - A
φSL C2
SHACKLE (By Crosby
Type
Safe Working Load
SWL
35.00 Ton
Pin Diameter
φp
57.00 mm
Inside Width of Shackle Pin
Wp
83.00 mm
Hp
196.50 mm
Shackle inside Height from Pin Axis
1/2 C1
1/2 C1 Wp
SLING -SHACKLE CLEARANCE
WIRE ROPE SLING Type
Hp
SECTION - B
(By Vendor's Name)
Minimum Breaking Strength
BS
96.00 Ton
Sling Diameter
φSL
44.45 mm
WELDING DATA Tensile Strength
Fu
Weld Size for Main Plate to Base
wlm
482.63 MPa
Filename / Date: Pad Eye - Spreader Bar / 5/30/2009
8
mm Refer to table
Limit of fillet weld size : Material Thickness
Min. Weld Size
Max.Weld Size
tp (mm)
amin (mm)
amax (mm)
to 6.35 inclusive
3.18
tp + 1/16 tp
over 6.35 to 12.70
4.76
tp + 1/16 tp
over 12.70 to 19.05
6.35
tp + 1/16 tp
CALCULATION SHEET PROJECT :
DATE :
TOTAL E&P INDONESIE EXTENSION PLATFORM INSTALLATION
SUBJECT :
8
mm
CHECKED BY :
PREP'D. BY
PAD EYE DECK PLTF. wls
Weld Size for Stiffeners to Base
A
REV'N. :
5/30/2009 14:11
BT
SGT 7.94
over 19.05
tp + 1/16 tp
DESIGN RESULT DIMENSION MAIN PLATE Thickness 25.00 mm
Radius
CHEEK PLATE
Length
120.00 mm
325.00 mm
Height
Thickness
150.00 mm
Radius
16.00 mm
PADEYE CLEARANCE Edge distance
100.00 mm
20.00
DIMENSION
Diameter 60.00
Thickness
mm
12.00 mm
Spacing 225.00 mm
Vertical
OK
OK
Main Plate to Base
Stiffener to Base
mm
WELD SIZE
STIFFENER PLATE
PIN HOLE
Horizontal
Width 143.00 mm
Main Plate to Cheeck Plate
Height 115.00 mm
4.00
Stiffener to Main Plate
mm
5.00
mm
8.00
mm
8.00
ANALYSIS RESULT CRITERIA Dimension Check
Stress at Eye
Stress at Base
Weld Size
ALLOWABLE
REMARKS
Hm ≥ rc + 50 mm
150.00 mm
150.00 mm
OK
Main Plate radius
GS-STR-103 5.1.3.1
120.00 mm
106.20 mm
OK
Bearing Stress
AISC J8-1
132.48 MPa
319.50 MPa
OK
Shear Stress
AISC F4-1
Hertz Pressure
GS-STR-103 5.1.3.1
Axial Tension Stress
AISC D1
Combined Stress I.R.
AISC H2-1
Von Mises Stress
AISC H2-1
47.93 MPa
142.00 MPa
OK
697.03 MPa
887.50 MPa
OK
26.02 MPa
213.00 MPa
OK
0.26
OK
14.50 mm
OK
3.83 mm
AWS D1.1Table 2.3
0.56
Stiffener to Main Plate
AWS D1.1Table 2.3
4.06 mm
Filename / Date: Pad Eye - Spreader Bar / 5/30/2009
OK
234.30 MPa
Main Plate to Cheek Plate AISC Table J2.4
This spreadsheet is valid for padeye design that modeled as shown only.
1.00
67.16 MPa
Weld Stress Check I.R. Main Plate & Stiffeners to Base
QUALIFICATIONS : 1.
ACTUAL
Height of eye
1.00 12.75 mm
OK OK
mm
CALCULATION SHEET PROJECT :
DATE :
TOTAL E&P INDONESIE EXTENSION PLATFORM INSTALLATION
SUBJECT :
1.
PAD EYE DECK PLTF.
A
PREP'D. BY
CHECKED BY :
SGT
BT
CALCULATE DESIGN FORCES DUE TO LOAD P
Load design on padeye, Pα
=
P* DAF* γc / CSF 430.41 kN
= =
In-Plane Horizontal Load, Px
Pα cosα 181.90 kN
= =
In-Plane Vertical Load, Pz
Pα sinα 390.09 kN
= =
Out of Plane Horizontal Load, Py
Pz γF
=
2.
REV'N. :
5/30/2009 14:11
19.50 kN
DETERMINE SHACKLE PIN HOLE
Design of pin hole diameter gap depends on Shackle SWL. -
SWL > 200 T
-
SWL < 200 T
Design gap to be used
3.
Pin Hole radius, ro
=
0.5 (φp + gap')
Hole diameter, D0
=
2 r0
gap =
5.00 mm
GS STR 103-5.1.3.1 Rev.01
gap =
3.00 mm
GS STR 103-5.1.3.1 Rev.01
gap' =
3.00 mm
For :
=
30.00 mm
=
60.00 mm
35 Ton Shackle SWL
CHECK FOR MINIMUM MAIN PLATE RADIUS
The radius of the main plate shall not be less than the maximum value of : R1
=
1.25 x D0
R2
=
D0/2 + 3"
Check main plate radius, rm
4.
5.
=
=
75.00
mm
=
106.20
mm
120.00 mm >
106.20
mm
GS STR 103-5.1.3.1 Rev.01
OK
DETERMINE CHEEK PLATE RADIUS
Cheek plate radius, rc
=
Check Hm - rc ≥ 50 mm
=
rm - C c
= 50.00 mm >=
100.00 mm 50.00 mm
OK
DETERMINE MINIMUM CLEARANCE BETWEEN SLING, SHACKLE & PADEYE
5.1. Gap between Shackle inside Width W p and Padeye, C1 : C1'
=
C1
=
Wp
=
8.30 mm
W p - (2 tc + tm)
=
26.00 mm
10%
Assumed for minimum OK
5.2. Vertical Clearance between Sackle inside Height Hp, Sling φSL & Padeye, C2 : C2'
=
C2
=
φSL
=
22.23 mm
Assumed for minimum
Hp - ( rm + φSL )
=
32.05 mm
OK
50%
Filename / Date: Pad Eye - Spreader Bar / 5/30/2009
CALCULATION SHEET PROJECT :
DATE :
TOTAL E&P INDONESIE EXTENSION PLATFORM INSTALLATION
SUBJECT :
6.
PAD EYE DECK PLTF.
A
REV'N. :
5/30/2009 14:11 PREP'D. BY
CHECKED BY :
SGT
BT
CHECK FOR STRESSES AT EYE LOCATION
6.1. Calculate Bearing Stress : Bearing area, ABR
=
φp (tm + 2 tc)
=
3249.00 mm2
Bearing stress, fBR
=
Pα / ABR
=
132.48 MPa
Bearing stress allowable, FBR
=
0.90 Fy
=
319.50 MPa
Interaction Ratio, I.R.
=
fBR / FBR
=
=
2 [ t m ( r m - r 0 ) + 2 t c( r c - r 0 ) ]
=
8980.00 mm2
0.41
<
AISC-ASD Equation (J8-1) 1.00
OK
6.2. Calculate Shear Stress : Shear area, Av
Shear stress, fv
=
Pα / Av
=
47.93 MPa
Shear stress allowable, Fv
=
0.40 Fy
=
142.00 MPa
Interaction Ratio, I.R.
=
fv / F v
=
=
2 r0
=
60.00 mm
=
φp
=
57.00 mm
Contact length, L
=
tm + 2 t c
=
57.00 mm
Load per contact length, P
=
Pα / L
=
7551.12 N/mm
0.34
<
AISC-ASD Equation (F4-1) 1.00
OK
6.3. Calculate Hertz Pressure : Pin Hole diameter, D1 Shackle Pin diameter, D2
Modulus of elasticity, E KD
7.
210000.00 N/mm2
= =
(D1 D2) / (D1 - D2)
1140.00
=
1/2
Roark's Formulas Table 14.1
Actual Hertz Pressure, fHRZ
=
0.591 (P E / KD)
=
697.03 MPa
Allowable Hertz Press., FHRZ
=
2.50 Fy
=
887.50 MPa
Interaction Ratio, I.R.
=
fHRZ / FHRZ
=
0.79
14989.00 mm2
<
Roark's Formulas Table 14.1 GS STR 103-5.1.3.1 Rev.01 1.00
OK
CHECK FOR STRESSES AT BASE LOCATION
7.1. Calculate Axial-Tension Stress : =
(tm Lm)+ 4 ( ts W s )
=
Tension stress, fa
=
Pz / AT
=
26.02 MPa
Tension stress allowable, Fa
=
0.60 Fy
=
213.00 MPa
Tension area, AT
AISC-ASD D1
7.2. Calculate Combined Stress Check at point 1: Moment in-plane, MIPB Moment of Inertia, Iy
= = =
Px Hm
27285106.63 Nmm
= 3
(1/12 tm Lm ) + 4 (1/12
3 W s ts )
2
+ 4 (W s ts Ls )
4
158471795.1 mm
Bending stress, fIPB1
=
(MIPB / Iy) Ls
=
Moment out-of-plane, MOPB
=
Py Hm
=
Moment of inertia, Ix
=
(1/12 Lm tm3) + 4 (1/12 ts W s3) + 4 [ ts W s( tm/2 + W s/2 ) 2 ]
= Bending stress, fOPB1
=
2
19.37 MPa 2925655 Nmm
1
60552389.08 mm4 ( MOPB / Ix ) [ 0.5 ( t m + 2 W s ) ]
=
Filename / Date: Pad Eye - Spreader Bar / 5/30/2009
7.51 MPa
Stress Check Location
CALCULATION SHEET PROJECT :
DATE :
TOTAL E&P INDONESIE EXTENSION PLATFORM INSTALLATION
SUBJECT :
Bending stress allowable, FB I.R.1
=
PAD EYE DECK PLTF.
=
0.60 Fy
(fa / Fa) + (fIPB1 / FB) + (fOPB1 / FB)
= =
213.00 MPa 0.25
<
REV'N. :
PREP'D. BY
CHECKED BY :
SGT
BT
AISC-ASD Equation (F1-5) 1.00
AISC-ASD Equation (H2-1)
7.3. Calculate Combined Stress Check at point 2: Bending stress, fIPB2
=
( MIPB / Iy ) ( 0.5 Lm )
=
27.98 MPa
Bending stress, fOPB2
=
( MOPB / Ix ) ( 0.5 tm )
=
0.60 MPa
I.R.2 =
(fa / Fa) + (fIPB2 / FB) + (fOPB2 / FB)
I.R.max
=
=
0.26
max [ I.R.1, I.R.2 ]
=
0.26
AISC-ASD Equation (H2-1) <
1.00
OK
7.4. Calculate Shear Stress in x-direction : 8125.00 mm2
Shear area, Avx
=
tm Lm
=
Shear stress, fvx
=
Px / Avx
=
22.39 MPa
Shear stress allowable, Fv
=
0.40 Fy
=
142.00 MPa
Interaction Ratio, I.R.
=
fvx / Fv
=
0.16
<
AISC-ASD Equation (F4-1) 1.00
OK
7.5. Calculate Shear Stress in y-direction : 6864.00 mm2
Shear area, Avy
=
4 ( ts W s )
=
Shear stress, fvy
=
Py / Avy
=
2.84 MPa
Shear stress allowable, Fv
=
0.40 Fy
=
142.00 MPa
Interaction Ratio, I.R.
=
fvy / Fv
=
0.02
<
AISC-ASD Equation (F4-1) 1.00
OK
1.00
OK
7.6. Calculate Von Mises Stress : fvx2 + fvy2
τxy
=
=
22.57 MPa
σx1
=
fa + fIPB1 + fOPB1
=
52.91 MPa
σx2
=
fa + fIPB2 + fOPB2
=
54.61 MPa
σx
=
max[ σ1,σ2]
=
54.61 MPa
=
0.00 MPa
σy fvm
8.
[σx2
σy2
- σx σy + ( 3
τxy2 )]
=
67.16 MPa
Fvm =
0.66 Fy
=
234.30 MPa
I.R. =
fvm / Fvm
=
=
+
0.29
<
CALCULATE WELD SIZE
Allowable weld stress, FW : FW1 =
0.30 Fu
=
144.79 MPa
AISC-ASD J2.4
FW2 =
0.40 Fy
=
142.00 MPa
AWS D1.1 Table 2.3
FW
min [FW1 , FW2 ]
=
142.00 MPa
=
Filename / Date: Pad Eye - Spreader Bar / 5/30/2009
A
5/30/2009 14:11
CALCULATION SHEET PROJECT :
DATE :
TOTAL E&P INDONESIE EXTENSION PLATFORM INSTALLATION
SUBJECT :
PAD EYE DECK PLTF.
REV'N. :
A
5/30/2009 14:11 PREP'D. BY
CHECKED BY :
SGT
BT
Size of fillet welds, a :
AISC-ASD J2.b
Material Thickness
Min. Weld Size
Max.Weld Size
tp (mm)
amin (mm)
amax (mm)
to 6.35 inclusive
3.18
tp + 1/16 tp
over 6.35 to 12.70
4.76
tp + 1/16 tp
over 12.70 to 19.05
6.35
tp + 1/16 tp
over 19.05
7.94
tp + 1/16 tp
AISC-ASD Table J2.4
Limit of weld size on padeye : tm
=
25.00 mm
amin =
7.94 mm
amax =
26.56 mm
tc
=
16.00 mm
amin =
6.35 mm
amax =
17.00 mm
ts
12.00 mm
=
amin =
4.76 mm
amax =
12.75 mm
Assume : weld size treated as line
8.1. Calculate Weld Size between Main Plate & Cheek Plate :
Aw
=
a
=
( 0.5 ) ( 0.707 ) 2π rc [ Pα / (Aw Fw) ] [tc / (2 tc + tm)]
Provide weld size, a
222.11 mm2/mm
= =
3.83 mm
=
3.83 mm
For Fillet Weld
y 8.2. Calculate Weld Size between Padeye Main Plate with Stiffeners to Base :
Properties of weld section main plate to base b1
=
Lm
=
325.00 mm
d1
=
tm
=
25.00 mm
Am
=
2*0.707*wlm* b1
=
3676.40 mm2
Imx
=
0.707*wlm*b1 d12
=
4
Imy
=
0.707*wlm*b13 / 6
/2
=
b1
574438 mm
32359979 mm4
Weld Section Main Plate to Base
Properties of weld section 2 stiffeners to base
y
b2
=
2 Ls - ts
=
213.00 mm
b3
=
2 Ls + ts
=
237.00 mm
d2
=
2 W s + tm
=
311.00 mm
As
=
4 (d2 - tm)*0.707*wls
=
6470.46 mm2
Isx
=
4 [ 1/12 ( d23 - tm3 ) ]*0.707*wls
=
56681804 mm4
Isy
=
(b22 / 2 ( d2 - tm ) + b32 / 2 ( d2 - tm ))*0.707*wls
=
82124747 mm4
d2
tm
x
b2
Properties of weld section combined main plate & stiffener to base Awz
=
Am + As
=
10146.86 mm2
Iwx
=
Imx + Isx
=
57256241 mm4
Iwy
=
Imy + Isy
=
114484726 mm4
Filename / Date: Pad Eye - Spreader Bar / 5/30/2009
x
d1
b3 Weld Section Stiffeners to Base
CALCULATION SHEET PROJECT :
DATE :
TOTAL E&P INDONESIE EXTENSION PLATFORM INSTALLATION
SUBJECT :
PAD EYE DECK PLTF.
A
REV'N. :
5/30/2009 14:11 PREP'D. BY
CHECKED BY :
SGT
BT
Check stress of welds Shear stress due to Px
fdx =
Px / Awz
=
17.93 N/mm2
Shear stress due to Py
fdy =
Py / Awz
=
1.92 N/mm2
Stresses due to Pz
( Pz / Awz )
=
38.44 N/mm2
Stresses due to MOPB at point 1
MOPB (W s + tm/2)/Iwx
=
7.95 N/mm2
Stresses due to MIPB at point 1
MIPB Ls / Iwy
=
26.81 N/mm2
=
73.20 N/mm2
Stresses due to MOPB at point 2
MOPB ( tm / 2) / Iwx
=
0.64 N/mm2
Stresses due to MIPB at point 2
MIPB (0.5*Lm) / Iwy
=
38.73 N/mm2
=
77.81 N/mm2
=
77.81 N/mm2
=
79.87 N/mm2
=
142.00 N/mm2
fdz1 =
(Pz/Awz) + MOPB (W s + tm / 2) / Iwx + MIPB Ls / Iwy
y
x
2 1
fdz2 =
(Pz/Awz) + MOPB ( tm / 2) / Iwx + MIPB (0.5*Lm) / Iwy
Direct stress, fdz
=
max [ fdz1,fdz2 ]
Combined stress, fcom
=
(fdy2 + fdx2 + fdz2)
Allowable stresses in the weld, Fw
Interaction ratio, I.R.
=
fcom / Fw
=
0.56
<
Stress Check Location
corresponding to point
1.0
OK
8.3. Calculate Weld Size between Stiffener & Main Plate : σx
=
max[ σ1,σ2]
=
F
=
σx W s ts
=
Weld size required, a
=
54.61 MPa 93706.52 N
F / [ 2 Hs (0.707 Fw) ] =
4.06 mm
=
4.76 mm
Weld size of stiffener to main plate, a
Filename / Date: Pad Eye - Spreader Bar / 5/30/2009
OK
2
View more...
Comments
